Shuttle-box for looms.



No. 687,520. Patented Nov. 26, |90l.. W. F. DRAPEB.

SHUTTLE BOX FUR LOOMS.

(Application filed July 20, 1901.) (No Model.) I

I. $4M r @M/4W4 UNlTED STATES PATENT OFFICE.

WILLIAM F. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPERCOMPANY, OF I-IOPEDALE, MASSACHUSETTS, A CORPORA- TION or MAINE.

SHUTTLE-BOX FOR LooMs.

SPECIFICATION formiilg 'part Of Letters Patent N6.- 687,520, dated.November 26, 1901. Application filed .l'nly 20,1901. Serial No 69,000.(No model.)

7 To all whom it may concern:

Be it known that I, WILLIAM F. DRAPER,

a citizen of the United States, and a resident ment in Shuttle-Boxes forLooms, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the d rawingsrepresenting like parts.

This invention relates more particularly to shuttle-boxes for looms; andit has for its principal object the production of means whereby the topportion of the shuttle-box may yield temporarily at the inlet end of thebox should the shuttle strike such portion of the box, the practicallyinstantaneous return of the yielding member or part acting to at oncereplace the shuttle in its proper path of movement. The usualcover-plate or shuttle-box top, which acts as a guard for enteringshuttles, is made as a rigid fast piece of metal and is absolutelyunyielding should the leading end of the shuttle lift and hit the plate,as not infrequently happens, and by reason of the unyieldingness of theplate the shuttle is apt to be displaced from its proper path and willnot be accurately positioned in the box.

The novel features of my invention will be hereinafter described, andparticularly pointed out in the following claims.

Figure 1 is a front elevation of one end of a lay-beam with ashuttle-box thereon embodying one form of my invention. Fig. 2 is aperspective view detached of the coverplate or guard shown in Fig. 1.Fig. 3 is a view similar to Fig. 1, but showing another form of myinvention; and Fig. 4 is a top or plan view detached of the cover-plateshown in Fig. 3.

Referring to Figs. 1 and 3, the lay-beam A,

the picker-stick P, lay-sword A and the back binder B, mounted to rockon the vertical pivot-stud b, may be and are of any usual or well-knownconstruction,and for convenience in illustration I have shown thestructure herein as based on the structure shown in United States PatentNo. 630,097, dated August 1, 1899. In the said patent the coverplate forthe shuttle-box is secured at its outer end to the stud Z) and at theinner end by a fastening-bolt c to connect the cover plate at the latterpoint with the side of the box-plate. Such cover-plate is made as acasting and is unyielding of itself and is secured in place in anunyielding manner.

Referring now to Figs. 1 and 2, the coverplate is made in two parts 00", connected by a transverse pivot 0 so that the part 0 which overhangsthe inlet end of the box, may rise and fall, turning about thesubstantially horizontal fulcrum 0 The part C is provided with asocketed eye 0 to embrace the vertical stud b, and it also has an ear orprojection c to receive the fastening-bolt 0*, which is extended throughthe ear 0 into the side member D of the box, substantially as in thepatent referred to, and in this embodiment of my invention the member 0is rigidly secured in place. Between the top of the ear 0 and the nut cof the fastening-bolt 0 I have interposed the base s of a suitableleaf-spring s, which extends substantially in the direction of the layand bears upon the top of the movable part 0 of the cover-plate, thespring normally maintaining the movable member 0 seated upon the top ofthe side member D, as shown in full lines, Fig. 1.

When a shuttle in entering the box rises at its leading end for anyreason, as indicated in dotted lines, Fig. 1, the impact of the shuttleagainst the under face of the movable member 0 will lift the latter orrock it on its fulcrum c compressing the spring 3, so that there is atemporary yielding of the box-cover at the inlet end of the shuttle-box,thereby doing away with the shock which would be due to the shuttlestriking an absolutely rigid part, and the practically instantaneousreflex action of the spring returns the member 0 to its normal position,and thereby presses down and returns the shuttle to its proper normalpath, so that it will enter and be properly positioned in theshuttle-box.

The shuttle S is shown in dotted lines in Fig. 1 as tipped up and havingstruck the movable member O', the dotted-line position of the lattershowing the effect of the impact of the shuttle thereupon.

In Figs. 3 and 4 I have shown another form of my invention, and hereinthe cover-plate may be substantially of the form shown in the patentreferred to, the cover-plate being made as a casting in one piece andprovided with the car 0 having a hole 0 for the fasteningbolt, the outerend of the cover-plate having the socketed eye 0, as before, for thestud b. Instead, however, of bolting the cover-plate rigidly in'place bya fastening-bolt, as-in the patent referred to, I use a longer bolt, as0 Fig. 3, and between the top of the ear 0 and the under side of the nutc I interpose a suitable spring 3 shown as a spiral spring coiled aroundthe bolt. The spring 3 is stiif enough to normally maintain thecover-plate in position resting upon the side member D; but should theshuttle tip up as it enters the box it will strike the inlet end of thecoverplate, which I have indicated as a Whole by 0 and will lift theinner end thereof against the stress of the spring 3 In this instancethe socketed eye a will loosely fit the stud b to permit the slightrocking movement of the cover-plate 0 when hit by the shuttle. Toprevent binding, the hole a is preferably made slightly elongated in thedirection of the length of the cover-plate, so that the slight rise andfall of the latter are readily per mitted without interference by thebolt.

My invention is not restricted to the precise construction andarrangement herein shown, for, so far as I am aware, it is broadly newto provide 'a shuttle-box with resilient means overhanging its outerorinlet end,such means being adapted to yield upon impact of theshuttle, and accordingly changes or modifications may be made withoutdeparting from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a shuttle-box for looms, a cover-plate having a pivotally-mountedinner end, and a spring to retain the pivoted end in normal position.

2. In a loom, a lay, a shuttle-box thereon, a cover-plate thereforhaving its inner end vertically movable, a support for the outer end ofthe cover-plate, and a spring to act upon and retain the inner end ofthe plate in normal position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.-

VVILLIAM F. DRAPER.

Witnesses:

GEORGE OTIS DRAPER, ERNEST W. W001).

